/* 第一个loading的样式 */
.sk-chase {
    width: 40px;
    height: 40px;
    position: relative;
    animation: sk-chase 2.5s infinite linear both;
  }
  
  .sk-chase-dot {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    animation: sk-chase-dot 2s infinite ease-in-out both;
  }
  
  .sk-chase-dot:before {
    content: '';
    display: block;
    width: 25%;
    height: 25%;
    background-color: #fff;
    border-radius: 100%;
    animation: sk-chase-dot-before 2s infinite ease-in-out both;
  }
  
  .sk-chase-dot:nth-child(1) {
    animation-delay: -1.1s;
  }
  .sk-chase-dot:nth-child(2) {
    animation-delay: -1s;
  }
  .sk-chase-dot:nth-child(3) {
    animation-delay: -0.9s;
  }
  .sk-chase-dot:nth-child(4) {
    animation-delay: -0.8s;
  }
  .sk-chase-dot:nth-child(5) {
    animation-delay: -0.7s;
  }
  .sk-chase-dot:nth-child(6) {
    animation-delay: -0.6s;
  }
  .sk-chase-dot:nth-child(1):before {
    animation-delay: -1.1s;
  }
  .sk-chase-dot:nth-child(2):before {
    animation-delay: -1s;
  }
  .sk-chase-dot:nth-child(3):before {
    animation-delay: -0.9s;
  }
  .sk-chase-dot:nth-child(4):before {
    animation-delay: -0.8s;
  }
  .sk-chase-dot:nth-child(5):before {
    animation-delay: -0.7s;
  }
  .sk-chase-dot:nth-child(6):before {
    animation-delay: -0.6s;
  }
  
  @keyframes sk-chase {
    100% {
      transform: rotate(360deg);
    }
  }
  
  @keyframes sk-chase-dot {
    80%,
    100% {
      transform: rotate(360deg);
    }
  }
  
  @keyframes sk-chase-dot-before {
    50% {
      transform: scale(0.4);
    }
    100%,
    0% {
      transform: scale(1);
    }
  }
  
  /* 第二个loding样式 */
  .spinner {
    margin: 100px auto;
    width: 50px;
    height: 40px;
    text-align: center;
    font-size: 10px;
  }
  
  .spinner > div {
    background-color: #FFF;
    height: 100%;
    width: 6px;
    display: inline-block;
    
    -webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out;
    animation: sk-stretchdelay 1.2s infinite ease-in-out;
  }
  
  .spinner .rect2 {
    -webkit-animation-delay: -1.1s;
    animation-delay: -1.1s;
  }
  
  .spinner .rect3 {
    -webkit-animation-delay: -1.0s;
    animation-delay: -1.0s;
  }
  
  .spinner .rect4 {
    -webkit-animation-delay: -0.9s;
    animation-delay: -0.9s;
  }
  
  .spinner .rect5 {
    -webkit-animation-delay: -0.8s;
    animation-delay: -0.8s;
  }
  
  @-webkit-keyframes sk-stretchdelay {
    0%, 40%, 100% { -webkit-transform: scaleY(0.4) }  
    20% { -webkit-transform: scaleY(1.0) }
  }
  
  @keyframes sk-stretchdelay {
    0%, 40%, 100% { 
      transform: scaleY(0.4);
      -webkit-transform: scaleY(0.4);
    }  20% { 
      transform: scaleY(1.0);
      -webkit-transform: scaleY(1.0);
    }
  }
  
  /* 第三个 loading 样式 */
  .sk-cube-grid {
    width: 40px;
    height: 40px;
    margin: 100px auto;
  }
  
  .sk-cube-grid .sk-cube {
    width: 33%;
    height: 33%;
    background-color: #FFF;
    float: left;
    -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
            animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out; 
  }
  .sk-cube-grid .sk-cube1 {
    -webkit-animation-delay: 0.2s;
            animation-delay: 0.2s; }
  .sk-cube-grid .sk-cube2 {
    -webkit-animation-delay: 0.3s;
            animation-delay: 0.3s; }
  .sk-cube-grid .sk-cube3 {
    -webkit-animation-delay: 0.4s;
            animation-delay: 0.4s; }
  .sk-cube-grid .sk-cube4 {
    -webkit-animation-delay: 0.1s;
            animation-delay: 0.1s; }
  .sk-cube-grid .sk-cube5 {
    -webkit-animation-delay: 0.2s;
            animation-delay: 0.2s; }
  .sk-cube-grid .sk-cube6 {
    -webkit-animation-delay: 0.3s;
            animation-delay: 0.3s; }
  .sk-cube-grid .sk-cube7 {
    -webkit-animation-delay: 0s;
            animation-delay: 0s; }
  .sk-cube-grid .sk-cube8 {
    -webkit-animation-delay: 0.1s;
            animation-delay: 0.1s; }
  .sk-cube-grid .sk-cube9 {
    -webkit-animation-delay: 0.2s;
            animation-delay: 0.2s; }
  
  @-webkit-keyframes sk-cubeGridScaleDelay {
    0%, 70%, 100% {
      -webkit-transform: scale3D(1, 1, 1);
              transform: scale3D(1, 1, 1);
    } 35% {
      -webkit-transform: scale3D(0, 0, 1);
              transform: scale3D(0, 0, 1); 
    }
  }
  
  @keyframes sk-cubeGridScaleDelay {
    0%, 70%, 100% {
      -webkit-transform: scale3D(1, 1, 1);
              transform: scale3D(1, 1, 1);
    } 35% {
      -webkit-transform: scale3D(0, 0, 1);
              transform: scale3D(0, 0, 1);
    } 
  }